мразь

crud; guck; four-letter man (Anglophile); bottom-feeder (Liv Bliss); scum of the earth (Liv Bliss); low wretch (Vadim Rouminsky)

Игорь Миг

shizit; piece of shit

amer.

creep (a detestable person Val_Ships)

austral., jerg.

scum; scumbag; shit

brit.

toe-rag (a scumbag; a contemptible or worthless person. From the cloth that was worn around one's feet as a sock, usually by vagrants (Englishtips.org) Taras)

cine

spawn (red rat)

colect., inf.

dregs; rubbish

colect., inf., peyor.

mean wretches

desaprob.

scum (Я решила, ты скокарь или вор-авторитет, оказалось, просто тварь, брал на понт, тушите свет. — I thought you were a big shot or a crime boss, turned out you were just scum, bluffing all the way. Alex_Odeychuk)

despect.

sleazebag (Agasphere); filth (He referred to his daughters as "filth" and "whores". • He raped his daughter repeatedly until she was sixteen. Absolute filth. – Конченая мразь. / Полная мразь. ART Vancouver); human scum (ART Vancouver); trash ("Police in Surrey are releasing video footage and photographs of three suspects after a woman was stabbed and left with serious injuries. A woman, in her early 30s, was stabbed and attacked by three young women who she did not know on Oct. 5. Surrey RCMP believe the three suspects are between the ages of 15 and 20 years old." "Trash. More great products of society."